{"id":416,"date":"2020-04-23T10:23:40","date_gmt":"2020-04-23T16:23:40","guid":{"rendered":"https:\/\/legend-group.com\/?page_id=416"},"modified":"2020-06-23T06:46:17","modified_gmt":"2020-06-23T12:46:17","slug":"water-activity","status":"publish","type":"page","link":"https:\/\/legend-group.com\/index.php\/hemp-cannabis\/water-activity\/","title":{"rendered":"Water Activity"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"416\" class=\"elementor elementor-416\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-385fcbb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"385fcbb\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-20ea767\" data-id=\"20ea767\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c652806 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"c652806\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e58ffc1 elementor-widget elementor-widget-text-editor\" data-id=\"e58ffc1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><em>Water activity<\/em> is not the same as <em>water content<\/em>. Water content is how much water is in something and it is determined by a simple pre-weighing of a known amount of a substance, drying the substance under known conditions, and re-weighing the known amount of substance.\u00a0 The weight difference is the water content generally expressed in % or parts-per-million (ppm) by weight.\u00a0<\/p><p><span style=\"color: #993300;\"><u>Water activity is the amount of unbound water in a sample.<\/u>\u00a0<\/span> Bound water is connected to molecules and is not available to microorganisms.\u00a0 Waters of hydration in a chemical is bound water.\u00a0 Water activity measures only the unbound water.\u00a0 <u><span style=\"color: #993300;\">This is the water that is available to microorganisms that can lead to spoilage.<\/span> <\/u>\u00a0Water activity is expressed as the vapor pressure of water in a sample divided by the vapor pressure of pure water at a given temperature.\u00a0 Relative humidity measurement in air is similar.\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6a3399f elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"6a3399f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/legend-group.com\/wp-content\/uploads\/2020\/04\/Water-activity.docx\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-far-file-alt\" viewBox=\"0 0 384 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M288 248v28c0 6.6-5.4 12-12 12H108c-6.6 0-12-5.4-12-12v-28c0-6.6 5.4-12 12-12h168c6.6 0 12 5.4 12 12zm-12 72H108c-6.6 0-12 5.4-12 12v28c0 6.6 5.4 12 12 12h168c6.6 0 12-5.4 12-12v-28c0-6.6-5.4-12-12-12zm108-188.1V464c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V48C0 21.5 21.5 0 48 0h204.1C264.8 0 277 5.1 286 14.1L369.9 98c9 8.9 14.1 21.2 14.1 33.9zm-128-80V128h76.1L256 51.9zM336 464V176H232c-13.3 0-24-10.7-24-24V48H48v416h288z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Microorganism minimum activity<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-0ec3919 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0ec3919\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b7b1d79\" data-id=\"b7b1d79\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5d488f1 elementor-widget-divider--view-line_text elementor-widget-divider--element-align-center elementor-widget elementor-widget-divider\" data-id=\"5d488f1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t\t<span class=\"elementor-divider__text elementor-divider__element\">\n\t\t\t\tWhy Measure Water Activity?\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0d610da elementor-widget elementor-widget-text-editor\" data-id=\"0d610da\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Water can cause expensive problems in your products including microbial growth, caking and clumping, rancidity, and changes in composition. Measuring water activity is a cost-effective method to assess the risk of these negative impacts to your product.<\/p><p>Water activity meters measure the relative humidity above a known sample in sealed chamber after equilibration at a known temperature.\u00a0 The difference in the meters is in the sensor technology.\u00a0 Many sensors are affected by volatile materials in the sample other than water and can give erroneous readings if corrections are not made.\u00a0 These can be very complex and don\u2019t always work.\u00a0 The technology LEGEND uses, tunable laser technology, is designed to measure <em>ONLY<\/em> the water vapor without interferences.\u00a0 The TDL\u2019s sensor measures the relative humidity of the air in the sample chamber by emitting a finely-tuned near-infrared laser beam across the headspace.\u00a0 Because water vapor has a strong absorption bands in the near infrared (NIR), the sensor can measure the presence of water vapor in the headspace very precisely.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fbeeb9f elementor-widget-divider--view-line_text elementor-widget-divider--element-align-center elementor-widget elementor-widget-divider\" data-id=\"fbeeb9f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t\t<span class=\"elementor-divider__text elementor-divider__element\">\n\t\t\t\tContact us\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2281366 elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"2281366\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-phone-alt\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M497.39 361.8l-112-48a24 24 0 0 0-28 6.9l-49.6 60.6A370.66 370.66 0 0 1 130.6 204.11l60.6-49.6a23.94 23.94 0 0 0 6.9-28l-48-112A24.16 24.16 0 0 0 122.6.61l-104 24A24 24 0 0 0 0 48c0 256.5 207.9 464 464 464a24 24 0 0 0 23.4-18.6l24-104a24.29 24.29 0 0 0-14.01-27.6z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Hemp Info: (651) 221-4061<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-map-marker-alt\" viewBox=\"0 0 384 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M172.268 501.67C26.97 291.031 0 269.413 0 192 0 85.961 85.961 0 192 0s192 85.961 192 192c0 77.413-26.97 99.031-172.268 309.67-9.535 13.774-29.93 13.773-39.464 0zM192 272c44.183 0 80-35.817 80-80s-35.817-80-80-80-80 35.817-80 80 35.817 80 80 80z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Address: 88 Empire Drive, Saint Paul, MN 55103<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-phone-alt\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M497.39 361.8l-112-48a24 24 0 0 0-28 6.9l-49.6 60.6A370.66 370.66 0 0 1 130.6 204.11l60.6-49.6a23.94 23.94 0 0 0 6.9-28l-48-112A24.16 24.16 0 0 0 122.6.61l-104 24A24 24 0 0 0 0 48c0 256.5 207.9 464 464 464a24 24 0 0 0 23.4-18.6l24-104a24.29 24.29 0 0 0-14.01-27.6z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Main Office: (651) 642-1150<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Water activity is not the same as water content. Water content is how much water is in something and it is determined by a simple pre-weighing of a known amount of a substance, drying the &hellip;<\/p>\n","protected":false},"author":5,"featured_media":0,"parent":166,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-416","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Water Activity - Legend Technical Services<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/legend-group.com\/index.php\/hemp-cannabis\/water-activity\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Water Activity - Legend Technical Services\" \/>\n<meta property=\"og:description\" content=\"Water activity is not the same as water content. 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